50d862e5d1
Old code first dit an ajax request to the avatar. Then a new image object with the same src was created and since we do not cache avatars yet :( this resulted in 2 sequential requests to the exact same URL Now if you set the displayname it will first set the placeholder and then load the avatar in the background. Only once this time!
129 lines
4 KiB
JavaScript
129 lines
4 KiB
JavaScript
/**
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* Copyright (c) 2013 Christopher Schäpers <christopher@schaepers.it>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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/**
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* This plugin inserts the right avatar for the user, depending on, whether a
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* custom avatar is uploaded - which it uses then - or not, and display a
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* placeholder with the first letter of the users name instead.
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* For this it queries the core_avatar_get route, thus this plugin is fit very
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* tightly for owncloud, and it may not work anywhere else.
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*
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* You may use this on any <div></div>
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* Here I'm using <div class="avatardiv"></div> as an example.
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*
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* There are 5 ways to call this:
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*
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* 1. $('.avatardiv').avatar('jdoe', 128);
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* This will make the div to jdoe's fitting avatar, with a size of 128px.
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*
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* 2. $('.avatardiv').avatar('jdoe');
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* This will make the div to jdoe's fitting avatar. If the div aready has a
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* height, it will be used for the avatars size. Otherwise this plugin will
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* search for 'size' DOM data, to use for avatar size. If neither are available
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* it will default to 64px.
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*
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* 3. $('.avatardiv').avatar();
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* This will search the DOM for 'user' data, to use as the username. If there
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* is no username available it will default to a placeholder with the value of
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* "x". The size will be determined the same way, as the second example.
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*
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* 4. $('.avatardiv').avatar('jdoe', 128, true);
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* This will behave like the first example, except it will also append random
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* hashes to the custom avatar images, to force image reloading in IE8.
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*
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* 5. $('.avatardiv').avatar('jdoe', 128, undefined, true);
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* This will behave like the first example, but it will hide the avatardiv, if
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* it will display the default placeholder. undefined is the ie8fix from
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* example 4 and can be either true, or false/undefined, to be ignored.
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*
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* 6. $('.avatardiv').avatar('jdoe', 128, undefined, true, callback);
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* This will behave like the above example, but it will call the function
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* defined in callback after the avatar is placed into the DOM.
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*
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*/
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(function ($) {
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$.fn.avatar = function(user, size, ie8fix, hidedefault, callback, displayname) {
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if (typeof(size) === 'undefined') {
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if (this.height() > 0) {
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size = this.height();
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} else if (this.data('size') > 0) {
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size = this.data('size');
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} else {
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size = 64;
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}
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}
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this.height(size);
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this.width(size);
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if (typeof(user) === 'undefined') {
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if (typeof(this.data('user')) !== 'undefined') {
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user = this.data('user');
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} else {
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this.imageplaceholder('x');
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return;
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}
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}
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// sanitize
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user = String(user).replace(/\//g,'');
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var $div = this;
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var url = OC.generateUrl(
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'/avatar/{user}/{size}',
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{user: user, size: Math.ceil(size * window.devicePixelRatio)});
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// If the displayname is not defined we use the old code path
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if (typeof(displayname) === 'undefined') {
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$.get(url, function(result) {
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if (typeof(result) === 'object') {
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if (!hidedefault) {
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if (result.data && result.data.displayname) {
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$div.imageplaceholder(user, result.data.displayname);
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} else {
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// User does not exist
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$div.imageplaceholder(user, 'X');
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$div.css('background-color', '#b9b9b9');
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}
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} else {
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$div.hide();
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}
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} else {
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$div.show();
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if (ie8fix === true) {
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$div.html('<img width="' + size + '" height="' + size + '" src="'+url+'#'+Math.floor(Math.random()*1000)+'">');
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} else {
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$div.html('<img width="' + size + '" height="' + size + '" src="'+url+'">');
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}
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}
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if(typeof callback === 'function') {
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callback();
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}
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});
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} else {
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// We already have the displayname so set the placeholder (to show at least something)
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if (!hidedefault) {
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$div.imageplaceholder(displayname);
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}
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var img = new Image();
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// If the new image loads successfull set it.
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img.onload = function() {
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$div.show();
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$div.text('');
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$div.append(img);
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}
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img.width = size;
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img.height = size;
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img.src = url;
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}
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};
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}(jQuery));
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